All Outputs (74)

Light Activated Release of Nitrile Ligands from trans -Ru(L)(PPh 3 ) 2 (nitrile) Complexes (2024)
Journal Article
Davidson, R. J., Hsu, Y.-T., Yufit, D. S., & Beeby, A. (2024). Light Activated Release of Nitrile Ligands from trans -Ru(L)(PPh 3 ) 2 (nitrile) Complexes. ACS Omega, 9(31), 34098-34105. https://doi.org/10.1021/acsomega.4c04917

A series of trans-RuL­(PPh3)2(nitrile) and {RuL­(PPh3)2}.2-μ-(nitrile)-based complexes [where L = 2,2′-(3,4-diphenyl-pyrrole-2,5-diyl)­dipyridine (dpp), di­(pyridin-2-yl)­isoindoline-1,3-diimine (bpi), or 4-(4-methoxyphenyl)-6-phenyl-2,2′-bipyridine... Read More about Light Activated Release of Nitrile Ligands from trans -Ru(L)(PPh 3 ) 2 (nitrile) Complexes.

Large area arrays of discrete single-molecule junctions derived from host-guest complexes. (2023)
Journal Article
Escorihuela, E., Del Barrio, J., Davidson, R. J., Beeby, A., Low, P. J., Prez-Murano, F., Cea, P., & Martin, S. (2024). Large area arrays of discrete single-molecule junctions derived from host-guest complexes. Nanoscale, 16(3), 1238-1246. https://doi.org/10.1039/d3nr05122f

The desire to continually reduce the lower limits of semiconductor integrated circuit (IC) fabrication methods continues to inspire interest in unimolecular electronics as a platform technology for the realization of future (opto)electronic devices.... Read More about Large area arrays of discrete single-molecule junctions derived from host-guest complexes..

Connectivity-Dependent Conductance of 2,2′-Bipyridine-Based Metal Complexes (2023)
Journal Article
Chelli, Y., Ferri, N., Vezzoli, A., Davidson, R. J., Morris, J., Nichols, R. J., …Beeby, A. (2023). Connectivity-Dependent Conductance of 2,2′-Bipyridine-Based Metal Complexes. ACS Omega, 8(51), 48958-48965. https://doi.org/10.1021/acsomega.3c06555

The present work provides an insight into the effect of connectivity isomerization of metal-2,2′-bipyridine complexes. For that purpose, two new 2,2′-bipyridine (bpy) ligand systems, 4,4′-bis­(4-(methylthio)­phenyl)-2,2′-bipyridine (Lmeta) and 5,5′-b... Read More about Connectivity-Dependent Conductance of 2,2′-Bipyridine-Based Metal Complexes.

Single-Molecule Conductance Behavior of Molecular Bundles (2023)
Journal Article
Bara-Estaún, A., Planje, I. J., Almughathawi, R., Naghibi, S., Vezzoli, A., Milan, D. C., …Beeby, A. (2023). Single-Molecule Conductance Behavior of Molecular Bundles. Inorganic Chemistry, 62(51), 20940-20947. https://doi.org/10.1021/acs.inorgchem.3c01943

Controlling the orientation of complex molecules in molecular junctions is crucial to their development into functional devices. To date, this has been achieved through the use of multipodal compounds (i.e., containing more than two anchoring groups)... Read More about Single-Molecule Conductance Behavior of Molecular Bundles.

The Pigments of British Medieval Illuminators: A Scientific and Cultural Study (2023)
Book
Gameson, R., Beeby, A., Fiorillo, F., Nicholson, C., Ricciardi, P., & Reynolds, S. (2023). R. Gameson (Ed.), The Pigments of British Medieval Illuminators: A Scientific and Cultural Study. Archetype

This comprehensive and richly illustrated volume is the first-ever history of British medieval illuminators’ pigments. It rests on first-hand investigation, with optimal scientific techniques, of a wide selection of manuscripts, ranging in date from... Read More about The Pigments of British Medieval Illuminators: A Scientific and Cultural Study.

Concerns over colour durability in the nineteenth-century industrial revolution: insights from John Ruskin’s teaching collection (2023)
Journal Article
Ghigo, T., Occhipinti, M., Beeby, A., Domoney, K., & Bone, D. (2023). Concerns over colour durability in the nineteenth-century industrial revolution: insights from John Ruskin’s teaching collection. Heritage Science, 11(1), Article 168. https://doi.org/10.1186/s40494-023-01010-6

The numerous new pigments that gradually became available to artists during the nineteenth-century Colour Revolution were received with contrasting attitudes. The initial enthusiasm for new chromatic possibilities was soon nuanced by concerns about t... Read More about Concerns over colour durability in the nineteenth-century industrial revolution: insights from John Ruskin’s teaching collection.

Single-Molecule Junction Formation in Deep Eutectic Solvents with Highly Effective Gate Coupling (2023)
Journal Article
Qiao, X., Vezzoli, A., Smith, S., Higgins, S. J., Davidson, R. J., Beeby, A., & Nichols, R. J. (2023). Single-Molecule Junction Formation in Deep Eutectic Solvents with Highly Effective Gate Coupling. Journal of Physical Chemistry C, 127(26), 12802-12810. https://doi.org/10.1021/acs.jpcc.3c03129

The environment surrounding a molecular junction affects its charge-transport properties and, therefore, must be chosen with care. In the case of measurements in liquid media, the solvent must provide good solvation, grant junction stability, and, in... Read More about Single-Molecule Junction Formation in Deep Eutectic Solvents with Highly Effective Gate Coupling.

Tuning Emission Lifetimes of Ir(C^N)2(acac) Complexes with Oligo(phenyleneethynylene) Groups (2023)
Journal Article
Davidson, R., Hsu, Y., Fox, M. A., Aguilar, J. A., Yufit, D., & Beeby, A. (2023). Tuning Emission Lifetimes of Ir(C^N)2(acac) Complexes with Oligo(phenyleneethynylene) Groups. Inorganic Chemistry, 62(6), 2793-2805. https://doi.org/10.1021/acs.inorgchem.2c03934

Emissive compounds with long emission lifetimes (μs to ms) in the visible region are of interest for a range of applications, from oxygen sensing to cellular imaging. The emission behavior of Ir(ppy)2(acac) complexes (where ppy is the 2-phenylpyridyl... Read More about Tuning Emission Lifetimes of Ir(C^N)2(acac) Complexes with Oligo(phenyleneethynylene) Groups.

Material Characterisation of William Burges’ Great Bookcase within the Disruption of a Global Pandemic (2022)
Journal Article
Ghigo, T., Bone, D., Howell, D., Domoney, K., Gironda, M., & Beeby, A. (2024). Material Characterisation of William Burges’ Great Bookcase within the Disruption of a Global Pandemic. Studies in Conservation, 69(1), 1-16. https://doi.org/10.1080/00393630.2022.2153463

This contribution presents the results of a technical investigation on the pigments of William Burges’ Great Bookcase (1859–62), preserved at the Ashmolean Museum. It is the first thorough material investigation of a remarkable piece of Gothic Reviva... Read More about Material Characterisation of William Burges’ Great Bookcase within the Disruption of a Global Pandemic.

Excited‐State Intramolecular Charge‐Transfer Dynamics in 4‐Dimethylamino‐4′‐cyanodiphenylacetylene: An Ultrafast Raman Loss Spectroscopic Perspective (2022)
Journal Article
Barak, A., Dhiman, N., Sturm, F., Rauch, F., Lakshmanna, Y. A., Findlay, K. S., …Umapathy, S. (2022). Excited‐State Intramolecular Charge‐Transfer Dynamics in 4‐Dimethylamino‐4′‐cyanodiphenylacetylene: An Ultrafast Raman Loss Spectroscopic Perspective. ChemPhotoChem, 6(12), Article e202200146. https://doi.org/10.1002/cptc.202200146

The D-π-A compound 4-dimethylamino-4′-cyanodiphenylacetylene (DACN-DPA) exhibits intramolecular charge transfer (ICT) upon photoexcitation. Ultrafast Raman Loss Spectroscopy (URLS) measurements show distinct spectral and temporal dynamics of C≡C and... Read More about Excited‐State Intramolecular Charge‐Transfer Dynamics in 4‐Dimethylamino‐4′‐cyanodiphenylacetylene: An Ultrafast Raman Loss Spectroscopic Perspective.

Divergent Approach for Tris-Heteroleptic Cyclometalated Iridium Complexes Using Triisopropylsilylethynyl-Substituted Synthons (2022)
Journal Article
Edkins, R. M., Hsu, Y.-T., Fox, M. A., Yufit, D., Beeby, A., & Davidson, R. J. (2022). Divergent Approach for Tris-Heteroleptic Cyclometalated Iridium Complexes Using Triisopropylsilylethynyl-Substituted Synthons. Organometallics, 41(17), 2487-2493. https://doi.org/10.1021/acs.organomet.2c00292

Bis-heteroleptic cyclometalated iridium complexes of the form Ir(La)2(acac), where La is a substituted 2-phenylpyridine derivative and acac is an acetylacetonato ligand, are a useful class of luminescent organometallic complexes for a range of applic... Read More about Divergent Approach for Tris-Heteroleptic Cyclometalated Iridium Complexes Using Triisopropylsilylethynyl-Substituted Synthons.

The Admiral, the Virgin, and the Spectrometer: Observations on the Coëtivy Hours (Dublin, Chester Beatty Library, W082) (2020)
Journal Article
Gameson, R., Nicholson, C., & Beeby, A. (2020). The Admiral, the Virgin, and the Spectrometer: Observations on the Coëtivy Hours (Dublin, Chester Beatty Library, W082). Gesta, 59(2), 203-231. https://doi.org/10.1086/710024

This article examines the nature and implications of the extensive Marian texts and imagery in the mid-fifteenth-century Parisian Coëtivy Hours (Dublin, Chester Beatty Library, MS W082), and reports the findings from scientific investigation of the i... Read More about The Admiral, the Virgin, and the Spectrometer: Observations on the Coëtivy Hours (Dublin, Chester Beatty Library, W082).

Enolization rates control mono- versus di-fluorination of 1,3-dicarbonyl derivatives (2019)
Journal Article
Rozatian, N., Beeby, A., Ashworth, I. W., Sandford, G., & Hodgson, D. R. (2019). Enolization rates control mono- versus di-fluorination of 1,3-dicarbonyl derivatives. Chemical Science, 10(44), 10318-10330. https://doi.org/10.1039/c9sc04185k

Fluorine-containing 1,3-dicarbonyl derivatives are essential building blocks for drug discovery and manufacture. To understand the factors that determine selectivity between mono- and di-fluorination of 1,3-dicarbonyls systems, we have performed kine... Read More about Enolization rates control mono- versus di-fluorination of 1,3-dicarbonyl derivatives.

Wide-field time-correlated single photon counting-based fluorescence lifetime imaging microscopy (2019)
Journal Article
Suhling, K., Hirvonen, L. M., Becker, W., Smietana, S., Netz, H., Milnes, J., …Beeby, A. (2019). Wide-field time-correlated single photon counting-based fluorescence lifetime imaging microscopy. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 942, Article 162365. https://doi.org/10.1016/j.nima.2019.162365

Wide-field time-correlated single photon counting detection techniques, where the position and the arrival time of the photons are recorded simultaneously using a camera, have made some advances recently. The technology and instrumentation used for t... Read More about Wide-field time-correlated single photon counting-based fluorescence lifetime imaging microscopy.

Highly Linearized Twisted Iridium(III) Complexes (2018)
Journal Article
Davidson, R., Hsu, Y., Griffiths, G. C., Li, C., Yufit, D., Pal, R., & Beeby, A. (2018). Highly Linearized Twisted Iridium(III) Complexes. Inorganic Chemistry, 57(22), 14450-14462. https://doi.org/10.1021/acs.inorgchem.8b02818

Sonogashira coupling with alkyne iridium(phenylpyridine)2(acetylacetone) synthons is used to produce highly linearized twisted iridium(III) complexes with lengths of up to 5 nm. These complexes were mechanically aligned in a polymer matrix, showing a... Read More about Highly Linearized Twisted Iridium(III) Complexes.

Conductance of ‘bare-bones’ tripodal molecular wires (2018)
Journal Article
Davidson, R. J., Milan, D. C., Al-Owaedi, O. A., Ismael, A. K., Nichols, R. J., Higgins, S. J., …Beeby, A. (2018). Conductance of ‘bare-bones’ tripodal molecular wires. RSC Advances, 8(42), 23585-23590. https://doi.org/10.1039/c8ra01257a

Controlling the orientation of molecular conductors on the electrode surfaces is a critical factor in the development of single-molecule conductors. In the current study, we used the scanning tunnelling microscopy-based break junction (STM-BJ) techni... Read More about Conductance of ‘bare-bones’ tripodal molecular wires.

Novel synthesis and properties of hydrogen-free detonation nanodiamond (2018)
Journal Article
Batsanov, S. S., Osavchuk, A. N., Naumov, S. P., Gavrilkin, S. M., Leskov, A. S., Mendis, B. G., …Batsanov, A. S. (2018). Novel synthesis and properties of hydrogen-free detonation nanodiamond. Materials Chemistry and Physics: Including Materials Science Communications, 216, 120-129. https://doi.org/10.1016/j.matchemphys.2018.05.072

Practically hydrogen-free nanodiamond (HFND), a prospective neutron-optical material, was prepared (in up to 3% yield) by detonating pure or graphite-doped RDX in an ice shell and comprehensively characterized by elemental analysis, X-ray diffraction... Read More about Novel synthesis and properties of hydrogen-free detonation nanodiamond.

There’s More to Reflectance Spectroscopy Than Lux (2018)
Journal Article
Beeby, A., Garner, L., Howell, D., & Nicholson, C. E. (2018). There’s More to Reflectance Spectroscopy Than Lux. Journal of the Institute of Conservation, 41(2), 142-153. https://doi.org/10.1080/19455224.2018.1463920

Fibre-optic reflectance spectroscopy is widely used as a tool for the analysis of coloured materials such as pigments and paints. We describe a new design for a FORS probe which is held some 5cm away from the sample surface and interrogates a spot of... Read More about There’s More to Reflectance Spectroscopy Than Lux.

Raman spectroscopic library of medieval pigments collected with five different wavelengths for investigation of illuminated manuscripts (2018)
Journal Article
Marucci, G., Beeby, A., Parker, A., & Nicholson, C. (2018). Raman spectroscopic library of medieval pigments collected with five different wavelengths for investigation of illuminated manuscripts. Analytical Methods, 10(10), 1219-1236. https://doi.org/10.1039/c8ay00016f

Raman spectroscopy is widely applied in the cultural heritage field to perform non-destructive measurements in situ, in order to identify materials, specifically pigments. The spectra collected can be challenging to interpret because certain source l... Read More about Raman spectroscopic library of medieval pigments collected with five different wavelengths for investigation of illuminated manuscripts.

Sky-blue emitting bridged diiridium complexes: beneficial effects of intramolecular π–π stacking (2018)
Journal Article
Congrave, D. G., Hsu, Y., Batsanov, A. S., Beeby, A., & Bryce, M. R. (2018). Sky-blue emitting bridged diiridium complexes: beneficial effects of intramolecular π–π stacking. Dalton Transactions, 47(6), 2086-2098. https://doi.org/10.1039/c7dt04201a

The potential of intramolecular π–π interactions to influence the photophysical properties of diiridium complexes is an unexplored topic, and provides the motivation for the present study. A series of diarylhydrazide-bridged diiridium complexes funct... Read More about Sky-blue emitting bridged diiridium complexes: beneficial effects of intramolecular π–π stacking.